Light of the Cosmos

Looking at loot lists I have just noticed that the only epic trinket in Mogu'Shan vaults has 1079 haste and a proc for 3236 intellect from damage over time effects.
I suddenly realised that I actually have no idea how Frost Bomb interacts with these kind of trinkets. Does it proc 100% of the time due to its reduced ticks? Does it count as a periodic effect at all?

Obviously you can't test it with this trinket yet but if anyone has any other trinkets that proc off damage over time effects it'd be nice to find out whether we'll have to swap spells to gain the advantage of this item or not.